I’ve had rear steer issues from worn out bushings, but that was on real old solid axle clunkers where the trailing arms and panhard bar were held on with a prayer. Definitely have them check it again to be sure.

If it still come back good, have the tires check/rotated. Could be pull from uneven wear. I assume you did these repairs because you had issues. The issues you get from these parts failing cause irregular and increased tire wear.